LOGAN, Utah — Taylor Tharp completed 26 of 29 passes for 283 yards and two touchdowns in just three quarters as No. 19 Boise State beat Utah State 52-0 today.

The Broncos (9-1, 6-0 WAC) won their eighth straight and did nothing to hurt themselves in the next rankings as they try to make a late run in the BCS standings and crack the Bowl Championship Series for a second straight year.

Boise State overwhelmed the hapless Aggies (0-10, 0-6), who have lost 16 in a row and were down by two touchdowns barely six minutes into the game.

The Broncos blocked a punt for a touchdown, blocked a field goal attempt and forced four turnovers, including three interceptions of Jase McCormick, who replaced starter Leon Jackson III in the second half as the Aggies desperately tried to get the offense going.

It didn't work. Utah State finished with 236 yards. Boise State's Ian Johnson gained almost half that total by himself with 110 yards on 19 carries and a touchdown.

Titus Young ran for two touchdowns and caught a pass for another in the Broncos' second shutout of the season.

The Broncos led 31-0 at halftime and have scored 70 straight points over their last two games, counting the 28 they scored to cap a 42-7 win over San Jose State the week before.

Tharp, who was pulled after throwing a 38-yard touchdown pass to Young that put Boise State up 45-0 with 53 seconds left in the third quarter, had the second-best completion percentage in school history.

Only Jared Zabransky's 21-for-23 performance against Utah State last year was better.

The Broncos scored on the opening drive, then Ia Falo returned a blocked punt 16 yards for Boise State's second touchdown. The Broncos blocked a field goal attempt on Utah State's next series and turned it into three more points on Kyle Brotzman's 22-yard field goal with 1:30 left in the first quarter.

Other than five penalties, the only mistake the Broncos made in the first half was Johnson's fumble at the Utah State 10. But Boise State got the ball right back two minutes later when Jason Robinson stopped Diondre Borel cold after a catch and knocked the ball free.

Tharp completed 19 of 21 passes in the first half, including a 4-yard touchdown pass to Richie Brockel that put the Broncos up 24-0 with 7:53 still remaining in the first half. That made up for a touchdown pass to Brockel on the previous drive that was called back because of a penalty.